Heel-attaching machine



Jan. 19, 1932 L D 1,841,448

HEEL ATTACHING MACHINE Filed March 20, 1929 Patented Jan. 19, 1932 if I i 1,841,448 I I -W }Jeni-Es mum:

10 available upon the ordinary swing-plate actherefore donot encounter, at the'rear, con

THOMAS LUND, or iaiivnatY, AssAoHUsETTs; ssam-R5 'UVINITEDV SHOELML-VVIJ CHINERY CQRPORATION, or rATERsoN, NEW JERSEY, A CORPORATION or NEWJEBSEY 7 w -1 'HEEDATTACHING ACHINE Application filed n 20, 1929, Serial No. 348,568;

This invention is directed to heel-.attachingurectilinear movement, as distinguished ing machines, relating particularly to that from the oscillation oftheswing-plate, the part of the apparatus which holds and prelargest heel-portions may he carried without ents to the heel-seat of ajackedshoe aheel. or changes in the; dimensions of the associate d are to be nailed in.-place. V itthe longitudinalaxes ofthe portions, or v Sometimes heels are verylarge, and-it those perpendicularcto the icenters f-of the' becomes impossible toposition side by side 'breasts,are parallel toeach other,instead of both a base and a top-lift within the'area converglng rearwardlyu Thefiheel-portion s tuated by a connectioneto the. loader-arm tracted spaces which woulddemand a; con- Which supplies nails to the die-block. This siderable increase in thedimensions of the is due to the fact that the sectors in whichthe plate to, give proper clearance. 'Actuated heel-portions are received, narrow rapidly from theloading mechanism,in combination as they approach the axis ofoscillation of the with a spring, the operation of my ;im c0 holder. 'lheleverengages the holder to'move Surface uponthereleasing hook, and move 45 time. vVithsuchasliding1plate,foronehavpears,-

swing-plate. vTo overcome this difficulty, it proved, mechanism is simple and direct. The has been customary to place therheelebase and latch which retains the holding plate against top-lift by'hand upon the die-blocl'r-for atthe force of, the. s ring preferably-engages tachment, this materially increasing the the plate itself, an is shown asreljeasable to time required. -T01 h0ld the maximumsizes allowthespringto-act, as bymeans movable c5 of heels in a swing-plate has called for a rewith the driversof the nailing mechanism:

design :of the machine-frame. After this, the latch is freed from the releasg It is an objectof this invention to so'or-' ing 1neans,jwhich may-continueits }travel ganize the heel-holding mechanismof a heel-' to normal. 'Beca-use t'o, alter the pressure in machine that there ma "beam )lei'oom' u on'the'worknit is a common )ractice'to ad- 70.

to carry together a base and a top-lift of the just the die-block-holder upon which the largest size, While still employing theefi'echeel-holding; plate. with its: retaining; latch tive actuation of the holder from the loading ismounted, in the presentinstance I may mechanism. .To attain this result, I com provide novelfmeans arranged to vary the bine with the nailing mechanism and os-. normal relation between the latch and its re- 75. f

cillatory loader of a heel-attaching.machine,- leasing; means, thus compensating for the a reciprocatory baseand 'top-lift-holder, changes produced by the pressure-adjust; which is mounted to slide in co-operation ment; In the specific embodimentofthe -inwith the nailing mechanism, and is convention herein disclosed, thetlatchfor the nected to the loader-totransform the osplate and the-cross-headbearingthedrivers cillation of said loader into rectilinear may carry hooks, which engageiand cause movement at the holder through a lever ful thereleaseof theplate from the latch-dur-v crumed at arelatively fixedpoint as coining,thetravel ofthe'cross-head. A-projecpared with the reciprocatory travel of the tionfrom the frame may Contact with. a cam it in one direction, while a 'springexerts its this laterally to disengageit from the latchforce to carry the holder inthe opposite di-- hook. j I 1 1, V rection. Against the action of the spring, In the accompanying drawings, asingle' the holder is latchedfor release at the desired illustrative embodiment ofthe invention ap- 1 heel-portions, as a base and top-lift,- which elements of "the heelingmachine, since with so Fig. 1 being a broken horizontal section of a portion of a heeling machine, this view being taken in a plane just above the dieblock; and

Fig. 2, a perspective view of one end of the holding plate taken from the rear of the ma- 7 chine and particularly showing the latching and releasing means.

I have chosen to illustrate the invention in connection with that type of heeling machine made the subject of United States Letters Patent No. 1,157,688, Glidden, October 26,

1915. A portion of the machine-frame is in dicated at 10, in this frame there being mounted for vertical reciprocation a holder 12fur nishing a support for a die-block 14, and a cross-head 16- bearingdrivers 18 extending into openings in the die-block. Movement is imparted, respectively, to the die-block-holder, to apply final pressure to the work, and to the cross-head, to cause the drivers to insert the nails resting upon their upper ends,

' through rods 20, 20 and surrounding sleeves 22, 22 reciprocated by the power mechanism v of the machine. The jack which carries the shoe to be heeled above the die-block is not illustrated. To deliver the attaching nails to the die-block-openings, loading mechanism is associated with the nailing mechanism, it being shown as having an arm 24 supporting a loader-block 26, this block being provided with nail-carrying openings 28 corresponding to those of the die-block. The arm is arranged to oscillate in a horizontal plane about a vertical rod 30 fixed in the machine-frame above the die-block, from a nail-receiving position, as appears in Fig. 1, to a nail-delivering position, against a stopscrew 27 threaded through a projection from the frame, in which last-mentioned position the openings 28 register with thoseof the dieblock.

To hold and present to the nailing mechanism such heel-portions as bases and toplifts of leather, rubber or other material, a substantially horizontal plate 32 is mounted to reciprocate above the die-block. At its rear portion it is guided by a rod 34, shown as extending horizontally through a groove in the die-block-holder. Its forward portion may slide upon the upper surface of the die-block. Arranged side by side, in parallel relation, upon the upper face of the plate is a heel-base-holding device H} and a toplift-holding device T. Each device may include an adjustable rear fork 36 and a yieldable breast-bar 38, these respectively clamping upon the plate a base h and a top-lift t. A helical spring 40connects the plate with a bracket 42 projecting from the-rear and to one side of the die-block-holder 12. This spring serves to draw theplate into its'toplift-presenting position, the movement being limited by an adjustable stop-screw 44 threaded through a portion of the bracket.

The rate of travel of the plate under the influence of the spring may be reduced by a dash-pot device 45. To the base-presenting position, the plate is forced by a lever 46 fulcrumed upon the bracket 42 and provided with a rounded end arranged to contact with a turned-up lug 48 upon the plate when the nailing mechanism is inactive and the dieblock-holder is in its normal position. Pivoted at its opposite ends to the lever and to the loader-arm 24 is a link 50. The lever is thus compelled to oscillate with the loaderarm, but in the opposite direction. That is, as the arm swings to the left (Fig. 1) to its nail-delivering position over the die-block,

the rounded end of the lever moves to the right toward the die-block and then reversely. Thus, as an incident to the delivery of nails to the die-block, the plate 32 is compelled to assume its base-presenting position, and allowed to be shifted by the spring 40 to its top-lift-presenting position.

In its heel-presenting relation, the plate is temporarily maintained against the tension of the spring 40 by a latch 52 in the form of a bell-crank lever fulcrumedl at the inner extremity of the bracket 42 and having a vertical arm arranged for engagement with a contact-block 54 at the underside and rear of the plate 32. To enable the base to be correctly located by the plate upon which it is clamped by'the device H, the block isadjustably secured by slot-and-screw connections 56. The latch is maintained in normal re-, taining engagement with the block by a spring 58, which draws it against a stopscrew 60. To allow the spring 40 to carry the plate 32 to its topelift-presenting position, the latchfis drawn away from the block 54 by means movable with the drivers 18 as these descend after nailing the base. Depending from a horizontal arm of the latchlever is a hook 62 supported for vertical adjustment by nuts 64 upon a threaded shank 66. From the rear of the cross-head 16 projects an arm 68, upon which is pivoted a releasing or actuating hook with its engaging end movable into contact with and above the corresponding end of the book 62. This hook 7 0 is allowed to yield against a spring 72, so it may assume the relation just indicated. Upon descent of the cross-head, the now overlapping ends of the hooks cause the retaining end of the latch '52 to be moved horizontally away from the block 54, thus releasing the holder-plate. When this has been accomplished, a cam-surface 74 upon the hook 70 strikes a contact-projection 76 at the end of a bracket 78 secured to the frame 10. The hook 7 O is thereby swung away from the hook 62, so thelatch 52 is freed and returned by its spring 58 for the retention of the plate 32.

At the beginning of a heel-attaching operation, the holder-plate 32 will be at the left extreme of its travel, as viewed in Fig. 1 of the drawings,against thestop-screw44. Nails having been supplied to the openings 28 of the loader-block 26,-as by a distributing mechanism or manually, the operatorturns the loader-arm 24 in a clockwise direction until, when it is in contact with thestop-screwQT, its openings are alined with those in the dieblock 14. The nails are thereuponreleasedby the tripping of their supporting shutter, and fall into the dieebloclreopenings, resting heads-down upon the ends of the drivers 18. During this movement ofthe loading'mechanism, the connections between it and the lever 46 acted to force the rounded end of said lever against the contact-lug 48 of the holder-plate, carrying this to its opposite extreme posi tion. In this travel, the block 54 strikes an inclined end of the latch 52, moving it aside. The spring '58 returns the latch after the block has passed it, and the plate is now retained with its clamping device H in base presenting relation over the die-block. At this'time, the operator supplies the holder with a base it and a top-lift i inserted, respectively, in the clamping devices H and T, and depressesthe starting treadle ofthe machine. Pressure having been applied to'the work'in the usual manner by the downward travel of the jack and upward travel of theadie-block, the cross-head rises, forcing the nails through the base and into the heel-seat of thefshoe,

. where they are clinched. During this elevation of the cross-head, the hook 70, rising with Now the top-lift zfiiis above the die-block, alined with the attached base, "and: a sec ond treadling of the machine causes this to be attached." The movement of the hook in this case is an idle one. Upon the removal of the work from the jack the apparatus is ready forthe heeling of another shoe. It is particularly to be noted that,be-i

cause of the parallel relation between the base and top-lift held upon the plate-32, ample space is furnished at the rear of the plate to receive these portions forheelsof large*size,l and that the control of the plate is through a" simple and direct connection tofthe usual loading mechanism, this connection'beingof such a character that the oscillation of the loading mechanism produces reciprocation of theplate. -Having describediny invention,- what-1 loader-arm; c

claim as new anddesire tosecure by Letters Patentof the United-Statsiszi '1.- In a "lieel attaching inachine, nailing? c mechanism, an oscillatory nail-loader deliva eringcthereto, a .reciproc'atory heeland 4 toplift-holder .mounted :to slide in "co-operation with the -nailing mechanism, a lever ful crumed at a "-pointfixed relatively to the, l

holder: and arranged to contact therewith, and connectionsito the loader for actuating thelever. a '7 2. In; a; heel-attaching machine; nailing mechanism, an. oscillatOrynail-loader delivering thereto, a reciprocatory heeland top-' lift-holder mounted to slide in co-operationwith the nailing mechanism, a lever fulcrumed at apoint fixed relatively to the holder-and arrangedto contact therewith, a spring exerting its'force to move the holder toward the "lever; and connections (to the loader for actuating the lever. i

3; In a heel-attaching machine,nailing mechanism," an' oscillatory nail-loader -deliv'- eringthereto, a reciprocatory heeland top lift-holder rmounted 'to slide int co-operation w th the nailing mechanism, aaylever -fulcrumed at a point-fixed relatively to the holder and arranged to contact therewith, a spring exerting its force to-move the holder toward .the lever, connections to the loader for actuating the lever, and a latch for retaining the holder-against the force of the spring. 4.1In a heel-attaching machine, nailing mechanism including a die-block" and 1 its holder, a'guide extending alongthedie-blockholder,'la holder-platemounted to slide upon the guide, :a loader-armipivotedto oscillate over the die-block-holder,-'a'nd connections pivotedto the loader-arm and movable into contact with the plate for sliding saidplate.

15.1 In a 1heel-attaching'machine, nailing mechanismincluding "a die-block and its holder, a'guide extending along the die-blockho1der, a"'holder-plate mounted to slide upon the-guide, aloader-arm pivoted to oscillate overlthe die-block holder, a lever fulcrumed i I upon the die-block-hiolder for contact with" the plate, and a link 6; In a heel-attaching :machine,-nailiiig mechanism including a :"die-block, and its holder, a'guide extending along the die block holderca holder plate mounted to slide upon the guide, axloader-arm pivoted to oscillate over the die-block-hol der, a lever fulcrumed upon the die-block-holder for contact with the plate, connections between the lever and loader-arm,:and a spring extending between the die-block-holder and plate and i arranged todraw; the plate into contact with the lever.

V 7. Irina heel-attaching machine, nailing mechanism F including a die-block and 1 its holder, a guide extendinga'longthe die-blockholder,- a holder-plate mounted to slide upon the guide, a loader-arm pivoted; to oscillate pivoted to the leverand over. the die-block-hold er, a lever fulcrumed upon the die-block-holder for contact with the plate, connections-between the lever and loader-arm, a spring extending between the T die-block-holder and plate and arranged todraw the plate into contact with the lever, and a latch carriedby the, die blockeholder and co-operating with the plate.

, :8. The combination with nailing mechanismhaving reciprocatory drivers, of a movmeans.

The combination with nailing mechanism having reciprocatory drivers, of'a movable heel-holder co-operating withthe nailing mechanism, a latch for, the holder, means movable ;With the drivers for releasing the latch, and means for freeing the latch from thereleasing means.

xlln-The"combination with nailing mecha nism having reciprocatory drivers, of a movable heelholder co-operating with'the nailing. mechanism, a latch for the holder, means movable with the drivers for releasing the latch, and means fixed in position relatively to the drivers for freeing the latch from the releasing means.

12. The combination with nailing mechanism, of a reciprocatory'heel-ba'seand toplift-holder, means arranged to move, the holder into position to present a base tothe nail-ing mechanism, a spring exerting its force to move the' holder into topV-lift-presenting' position,.a latch for temporarily retaining the holder in itsbase-presenting position, a hook carried by the latch, and atraveling releasing hook arranged to engage the latch-hook. Y

13. The combinationwith nailing mechanism', of a'recipr'ocatory heel-'baseand toplift-holder, means arranged to-move the hold-f er into position to present a base to the na1l-' ing. mechanism, a-spring exerting its force to move the holder into top-lift presenting position, a latch: for temporarily retaining the holder in its base-presenting position, a hook carried. by: the latch, a travelingreleasing hook arranged to engage the latch-hook, and

5 means arranged to adjust one of the hooks towardand from the companionhook.

14. The combinationzwithnailing mechanism; ofa reciprocatory heel-base and toplift-holder, ,m'eans'arranged. toinove "the holder into position topresent a baseto the nailing .mechanism, a, spring exerting, its force to move the holder into top-lift-presenting position, a latch for temporarily retaining the holder in its base-presenting position, a hook carried by the latch, a reciprocatory hook arranged for engagement with the latch-hook during movement in, one direction, and means for moving the reciprocatoryhook out of engagement with the latch-hook during movement in the opposite direction.

15. Thefcombinationwith nailing mechanism, of a reciprocatory heel-base and toplift-holder, means arranged to move the holder into position to present a base to the nailing mechanism, a spring exerting its force to move the holder into top-lift-presenting position, a latch for temporarily retaining the holder in its base-presenting position, a hook carried by the latch, a reciprocatory hook arranged for engagement with the latch-hook during movement in one direction, and a contact member arranged to move the reciprocatory hook during its travel in the opposite direction laterally out of engagement with the latch-hook.

16. In a heel attaching machine, a frame, a die-block and its holder supported by the frame, a cross-head reciprocating upon the frame and carrying drivers co-operating with the die-block, a heel-baseand top-lift-hold-v ing platemounted to reciprocate upon the die-block-holder, a spring connecting the plate and holder, a latch pivoted upon the holder for-engagement With the plate, a member movable uponthe cross-head and operating the latch, said member being provided witha'cam-surface, and a projection from the frame arranged for contact with the camsurface. 7

17. In a heel-attaching machine, a frame, a die-block and its holder supported by the frame, a cross-head reciprocating upon the frame and'carrying drivers co-operating with the die-block, a heel-baseand top-lift-holding plate mounted to reciprocate upon the die-block-holder, a spring connecting the plate and holder, a latch pivoted upon'the holderfor engagement with the plate, a member variable in position upon the latch, and a member carried by the cross-head for engagement with the latch member.

18. Ina heel-attaching machine, a frame, a die-block and its holder supported by the frame, a cross-head reciprocating upon the frame and carrying drivers co-operating with the die-block, a 'heel-baseand top-lift-holding plate mounted toreciprocate upon the dieblock-holder, a spring connecting the plate and holder, a latch pivoted upon the holder for engagement with the plate, and co-operating hooks carried by the latch and cross-head and arranged to release the latch.

19. In a heel-attaching machine, a'frame, a die-block and its holder supported by the frame, a cross-head reciprocating upon the frame and carrying drivers co-operatmg with the die-block, a heel-base-and top-lift-holding plate mounted to reciprocate upon the die-block-holder, a spring connecting the plate and holder, a latch pivoted upon the holder for engagement With the plate, co-operating hooks carried by the latch and cross-' head and arranged to release the latch, the hook upon the cross-ahead being pivoted, and a member fixed upon the frame and contacting with the cross-head-hook to eflect its movement.

In testimony whereof I have signed my name to this specification.

.. THOMAS LUND 

